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Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia.

Rainwater tanks for larger roof areas need optimisation of tank size, which is often not carried out before installation of these tanks. This paper presents a case study of rainwater tank evaluation and design for large roof areas, located in Melbourne, Australia, based on observed daily rainfall da...

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Main Authors: Ahsan, Amimul, Imteaz, Monzur Alam, Shanableh, Abdallah, Rahman, Ataur
Format: Article
Language:English
Published: Elsevier B.V. 2011
Online Access:http://psasir.upm.edu.my/id/eprint/23214/1/Optimisation%20of%20rainwater%20tank%20design%20from%20large%20roofs.pdf
http://psasir.upm.edu.my/id/eprint/23214/
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spelling my.upm.eprints.232142015-10-16T07:48:45Z http://psasir.upm.edu.my/id/eprint/23214/ Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia. Ahsan, Amimul Imteaz, Monzur Alam Shanableh, Abdallah Rahman, Ataur Rainwater tanks for larger roof areas need optimisation of tank size, which is often not carried out before installation of these tanks. This paper presents a case study of rainwater tank evaluation and design for large roof areas, located in Melbourne, Australia, based on observed daily rainfall data representing three different climatic regimes (i.e. dry average, and wet years). With the aim of developing a comprehensive Decision Support Tool for the performance analysis and design of rainwater tanks, a simple spreadsheet based daily water balance model is developed using daily rainfall data, contributing roof area, rainfall loss factor, available storage volume, tank overflow and irrigation water demand. In this case study, two (185 m3 and 110 m3) underground rainwater tanks are considered. Using the developed model, effectiveness of each tank under different climatic scenarios are assessed. The analysis shows that both the tanks are quite effective in wet and average years, however less effective in dry years. A payback period analysis of the tanks is preformed which reveals that the total construction cost of the tanks can be recovered within 15–21 years time depending on tank size, climatic conditions and future water price increase rates. For the tanks, a relationship between water price increase rates and payback periods is developed. The study highlights the need for detailed optimisation and financial analysis for large rainwater tanks to maximise the benefits. Elsevier B.V. 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23214/1/Optimisation%20of%20rainwater%20tank%20design%20from%20large%20roofs.pdf Ahsan, Amimul and Imteaz, Monzur Alam and Shanableh, Abdallah and Rahman, Ataur (2011) Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia. Resources, Conservation and Recycling, 55 (11). pp. 1022-1029. ISSN 0921-3449 10.1016/j.resconrec.2011.05.013
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Rainwater tanks for larger roof areas need optimisation of tank size, which is often not carried out before installation of these tanks. This paper presents a case study of rainwater tank evaluation and design for large roof areas, located in Melbourne, Australia, based on observed daily rainfall data representing three different climatic regimes (i.e. dry average, and wet years). With the aim of developing a comprehensive Decision Support Tool for the performance analysis and design of rainwater tanks, a simple spreadsheet based daily water balance model is developed using daily rainfall data, contributing roof area, rainfall loss factor, available storage volume, tank overflow and irrigation water demand. In this case study, two (185 m3 and 110 m3) underground rainwater tanks are considered. Using the developed model, effectiveness of each tank under different climatic scenarios are assessed. The analysis shows that both the tanks are quite effective in wet and average years, however less effective in dry years. A payback period analysis of the tanks is preformed which reveals that the total construction cost of the tanks can be recovered within 15–21 years time depending on tank size, climatic conditions and future water price increase rates. For the tanks, a relationship between water price increase rates and payback periods is developed. The study highlights the need for detailed optimisation and financial analysis for large rainwater tanks to maximise the benefits.
format Article
author Ahsan, Amimul
Imteaz, Monzur Alam
Shanableh, Abdallah
Rahman, Ataur
spellingShingle Ahsan, Amimul
Imteaz, Monzur Alam
Shanableh, Abdallah
Rahman, Ataur
Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia.
author_facet Ahsan, Amimul
Imteaz, Monzur Alam
Shanableh, Abdallah
Rahman, Ataur
author_sort Ahsan, Amimul
title Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia.
title_short Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia.
title_full Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia.
title_fullStr Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia.
title_full_unstemmed Optimisation of rainwater tank design from large roofs: A case study in Melbourne, Australia.
title_sort optimisation of rainwater tank design from large roofs: a case study in melbourne, australia.
publisher Elsevier B.V.
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/23214/1/Optimisation%20of%20rainwater%20tank%20design%20from%20large%20roofs.pdf
http://psasir.upm.edu.my/id/eprint/23214/
_version_ 1643827991476699136
score 13.211869

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